/*
 * Copyright (c) 2004-2022, University of Oslo
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * Neither the name of the HISP project nor the names of its contributors may
 * be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.hisp.dhis.dxf2.adx;

import java.io.IOException;
import java.io.PipedInputStream;
import java.io.PipedOutputStream;
import java.util.concurrent.Callable;
import javax.persistence.EntityManagerFactory;
import org.hisp.dhis.commons.util.StreamUtils;
import org.hisp.dhis.dbms.DbmsUtils;
import org.hisp.dhis.dxf2.common.ImportOptions;
import org.hisp.dhis.dxf2.datavalueset.DataValueSetService;
import org.hisp.dhis.dxf2.importsummary.ImportSummary;
import org.hisp.dhis.scheduling.JobConfiguration;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;

/**
 * @author bobj
 */
public class AdxPipedImporter implements Callable<ImportSummary> {
  public static final int PIPE_BUFFER_SIZE = 4096;

  public static final int TOTAL_MINUTES_TO_WAIT = 5;

  protected PipedInputStream pipeIn;

  private final DataValueSetService dataValueSetService;

  private final ImportOptions importOptions;

  private final JobConfiguration id;

  private final EntityManagerFactory entityManagerFactory;

  private final Authentication authentication;

  public AdxPipedImporter(
      DataValueSetService dataValueSetService,
      ImportOptions importOptions,
      JobConfiguration id,
      PipedOutputStream pipeOut,
      EntityManagerFactory entityManagerFactory)
      throws IOException {
    this.dataValueSetService = dataValueSetService;
    this.pipeIn = new PipedInputStream(pipeOut, PIPE_BUFFER_SIZE);
    this.importOptions = importOptions;
    this.id = id;
    this.entityManagerFactory = entityManagerFactory;
    this.authentication = SecurityContextHolder.getContext().getAuthentication();
  }

  @Override
  public ImportSummary call() {
    SecurityContextHolder.getContext().setAuthentication(authentication);
    DbmsUtils.bindSessionToThread(entityManagerFactory);

    try {
      return dataValueSetService.importDataValueSetXml(pipeIn, importOptions, id);
    } catch (Exception ex) {
      return ImportSummary.error("Exception: " + ex.getMessage());
    } finally {
      StreamUtils.closeQuietly(pipeIn);
      DbmsUtils.unbindSessionFromThread(entityManagerFactory);
    }
  }
}
